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The quantitative detection of paclitaxel and baccatin III. (a) The LC-MS/MS analysis of paclitaxel and baccatin III in 20-year-old roots, WR, and TR. The retention time (RT) of paclitaxel is 3.08 min and that of baccatin III is 2.86 min. (b) The content of paclitaxel in 20-year-old roots, WR, and TR. (c) The content of baccatin III in 20-year-old roots, WR, and TR. Asterisks indicate significant differences (*** p < 0.001).
